Broken revision count

[shlok007]

I don't understand the intended behavior of revision_observer.rb .

It seems like it should increment revision column on every change of room , track , event and conference itself. If that's the case then then the count increments for the changes in conference model only and needs to be fixed.

[differentreality]

Thanks for the issue @shlok007
Also Event, Room, Track do not have a relationship with Conference any more, they do with Program.
https://github.com/openSUSE/osem/blob/master/app/models/revision_observer.rb#L19

[shlok007]

I was thinking maybe we could drop observers. It was removed from core in Rails 4.0 . There hasn't been a version release since 2013 and hence, no support for rails 5 yet. See: rails/rails-observers#39

We could probably use Concerns instead
https://signalvnoise.com/posts/3372-put-chubby-models-on-a-diet-with-concerns